1 files changed, 26 insertions, 0 deletions

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index fe361ae7ef2f..97a1764a3d20 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -1092,6 +1092,32 @@ config MTRR
 
           See <file:Documentation/mtrr.txt> for more information.
 
+config MTRR_SANITIZER
+        def_bool y
+        prompt "MTRR cleanup support"
+        depends on MTRR
+        help
+          Convert MTRR layout from continuous to discrete, so some X driver
+          could add WB entries.
+
+          Say N here if you see bootup problems (boot crash, boot hang,
+          spontaneous reboots).
+
+          Could be disabled with disable_mtrr_cleanup. Also mtrr_chunk_size
+          could be used to send largest mtrr entry size for continuous block
+          to hold holes (aka. UC entries)
+
+          If unsure, say Y.
+
+config MTRR_SANITIZER_ENABLE_DEFAULT
+        def_bool y
+        prompt "Enable MTRR cleanup by default"
+        depends on MTRR_SANITIZER
+        help
+          Enable mtrr cleanup by default
+
+          If unsure, say Y.
+
 config X86_PAT
         bool
         prompt "x86 PAT support"